/*雪花飘落js*/
/*鏍峰紡涓€*/
//鑳屾櫙闆姳椋樿惤鐗规晥
(function($){
  $.fn.snow = function(options){
    var $flake = $('<div id="snowbox" />').css({'position': 'absolute','z-index':'9999', 'top': '-50px'}).html('&#10052;'),
        documentHeight 	= $(document).height(),
        documentWidth	= $(document).width(),
        defaults = {
          minSize		: 10,
          maxSize		: 20,
          newOn		: 1000,
          flakeColor	: "#AFDAEF" /* 姝ゅ鍙互瀹氫箟闆姳棰滆壊锛岃嫢瑕佺櫧鑹插彲浠ユ敼涓?#FFFFFF */
        },
        options	= $.extend({}, defaults, options);
    var interval= setInterval( function(){
      var startPositionLeft = Math.random() * documentWidth - 100,
          startOpacity = 0.5 + Math.random(),
          sizeFlake = options.minSize + Math.random() * options.maxSize,
          endPositionTop = documentHeight - 200,
          endPositionLeft = startPositionLeft - 500 + Math.random() * 500,
          durationFall = documentHeight * 10 + Math.random() * 5000;
      $flake.clone().appendTo('body').css({
        left: startPositionLeft,
        opacity: startOpacity,
        'font-size': sizeFlake,
        color: options.flakeColor
      }).animate({
        top: endPositionTop,
        left: endPositionLeft,
        opacity: 0.2
      },durationFall,'linear',function(){
        $(this).remove()
      });
    }, options.newOn);
  };
})(jQuery);
$(function(){
  $.fn.snow({
    minSize: 5, /* 瀹氫箟闆姳鏈€灏忓昂瀵? */
    maxSize: 50,/* 瀹氫箟闆姳鏈€澶у昂瀵? */
    newOn: 500  /* 瀹氫箟瀵嗛泦绋嬪害锛屾暟瀛楄秺灏忚秺瀵嗛泦 */
  });
});